Josephine Eliza Langford emerged as a prominent figure in young adult cinema, best known for bringing the complex literary character Tessa Young to life in the global film phenomenon After. Born on August 18, 1997, in Perth, Western Australia, she grew up in a medical family; her father, Stephen Langford, is a flying doctor, and her mother, Elizabeth, is a physician. Her elder sister, Katherine Langford, had already begun to forge a successful acting career, which provided Josephine with an early insight into the industry. She attended Perth College and initially considered pursuing medicine or psychology before her own interest in acting solidified.

Langford's professional career began with short films, but her breakthrough arrived in 2019 when she was cast as the lead in After, a film adaptation of Anna Todd's bestselling novel. The movie, which explored the tumultuous relationship between Tessa and Hardin Scott, played by Hero Fiennes Tiffin, quickly became a commercial success, resonating deeply with a global audience and spawning a film series. Langford reprised her role in several sequels, including After We Collided, After We Fell, After Ever Happy, and After Everything, firmly establishing her as a leading actress in the romantic drama genre and a familiar face to millions of fans worldwide.

Beyond the "After" universe, Langford has deliberately sought diverse roles to showcase her range. She starred in the 2021 Netflix coming-of-age film Moxie, directed by Amy Poehler, playing the popular and complex Emma Cunningham. She later took on the lead role of Zoey Miller in the 2023 Amazon Prime Video romantic comedy The Other Zoey, and portrayed Katy Gibson alongside Charlie Rowe in the family drama Gigi & Nate. These projects demonstrated her ability to navigate different genres, from teen dramas to lighthearted comedies and emotional family stories.

As an Australian actress who found international fame through a defining franchise, Josephine Langford continues to build a varied filmography. She maintains a balance between mainstream projects and more independent-minded roles, steadily evolving her career beyond her initial claim to fame. Based on her work trajectory, she remains an active and sought-after performer in contemporary cinema.